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Service Guide OL600e/610e/610ePS
Chapter 2 Operation Description
2.3 Power Supply Board
The power supply board consists of an AC filter circuit, a low voltage power supply circuit, a high voltage
power supply circuit, heater drive circuit, and photosensors.
(1) Low Voltage Power Supply Circuit
This circuit generates the following voltages.
Output voltage
Use
+5 V
Logic circuit supply voltage
+30 V
Motor and fan drive voltage and source
voltage for high-voltage supply
+8 V
Analog supply voltage
-8 V
PS board and analog circuit supply voltage
(2) High Voltage Power Supply Circuit
This circuit generates following voltages required for electrophotographic process from +5 V, according to
the control sequence from the control board. When cover open state is detected, +5 V supply is
interrupted automatically to stop the supply of all high-voltage outputs.
Output
Voltage
Use
Remarks
CH
-1.35 KV
Voltage applied to charging
roller
DB
-300 V/+300 V
Voltage applied to developing
roller
SB
-450 V/ 0 V
Voltage applied to toner supply
roller
TR
+500 V to +4 KV/-750 V
Voltage applied to transfer
roller
Variable
CB
+400 V
Voltage applied to cleaning
roller
(3) Photosensor
The photosensor mounted on this power supply board monitors the paper running state during printing.
Summary of Contents for OL600e
Page 7: ...Table of Contents Page Wrong Part Number Bill Healey OKI_ELECTRIC US 02 22 96 149 ...
Page 22: ...Figure 2 1 OL600e Block Diagram ...
Page 24: ...Page 12 Service Guide OL600e 610e 610ePS Chapter 2 Operation Description ...
Page 25: ...Figure 2 2 OL610e Block Diagram ...
Page 27: ...Page 13 Service Guide OL600e 610e 610ePS Chapter 2 Operation Description ...
Page 28: ...Figure 2 3 OL610e PS Block Diagram ...
Page 126: ...Page 70 Service Guide OL600e 610e 610ePS Chapter 6 Troubleshooting ...
Page 128: ...Page 71 Service Guide OL600e 610e 610ePS Chapter 6 Troubleshooting ...
Page 134: ...Partner Exchange BPX for any updates to this material http bpx okidata com ...
Page 151: ...Figure 6 4 ...
Page 167: ...Page 103 Service Guide OL600e 610e 610ePS Chapter 7 Wiring Diagrams 7 3 Resistance Check ...